We have a MultiPlus 3000 connected to 2x100amp hour batteries via 2/0 cabling. The DC Voltage at the battery terminal on the MultiPlus reads 13.6vDC (i.e, full battery), however when we turn the MultiPlus on, the Low Battery light turns on (static, not blinking). Why is this?
New inverter?
Did it work before?
Besides the "Low battery" LED, all other LEDs are off?
New inverter. Just connected everything. Yes, all other LEDs are off.
Have you checked the battery parameters?
Also I know it may sound silly, is the unit a 12v unit? Had similar issue when someone decided to use a 48v quattro with a 12v battery.
Did you review all of the MultiPlus’s settings? I think there is a low voltage detect setting that not only includes the voltage, but how long it needs to be present to declare a low voltage state it sounds like one or both of these settings is incorrect. If the voltage setting is correct, try increasing the time for the detection to a 2-3 minutes.
Were you able to resolve the low battery light issue? I’m having the same issue.
Things that jump to mind are a battery bank that is too small, LA batteries that may have a problem and the voltage drops substantially when in use and under load, less than optimal settings for the particular battery, bad connections or voltage drop over long cables etc. What do the voltage measure at the battery and inverter when this happens?
Ive got 2 Battleborn GC3s connected in parallel. so I have 540ah. batteries have been tested and are good. the multimeter was reading 13.2 volts consistently. connections are all tight and my longest wire is no more than 3ft using 4/0 wire.
